Most guides to Oregon sales tax bury the answer. This one leads with it, then covers the taxes that do apply to Oregon businesses and the multi-state trap that catches Oregon sellers off guard.
Does Oregon Have Sales Tax?
No. Oregon has no general sales tax at the state, county, or city level, so the combined rate is 0.00%. The Oregon Department of Revenue (DOR) states plainly that “Oregon doesn’t have a general sales or use/transaction tax.” No business collects it, no consumer pays it, and no return exists to file. That rule holds statewide with no local exceptions.
Oregon is one of five states with no statewide sales tax. It is also the cleanest of the five, because it permits no local sales tax anywhere. The comparison table below shows how it differs from Alaska and Montana.
What Is the Portland, Oregon Sales Tax Rate?
The Portland, Oregon sales tax rate is 0.00%. Portland is not special. It follows the statewide rule, and no Oregon city or county may levy its own sales tax. This was true in 2024, remained true in 2025, and remains true in 2026, per the Oregon DOR. A shopper pays no sales tax at any Portland register.
Portland businesses do pay other local taxes instead. See “What Taxes Do Oregon Businesses Actually Pay Instead?” below for the Business License Tax and county income taxes that apply in the Portland metro area.
Which States Have No Sales Tax?
Five states have no statewide sales tax, remembered by the NOMAD mnemonic: New Hampshire, Oregon, Montana, Alaska, and Delaware. Of the five, only Alaska allows local jurisdictions to impose their own sales taxes, per the Tax Foundation. Montana allows limited resort-area taxes. Oregon allows none at any level.
| State | Statewide sales tax | Local sales taxes allowed? | Source |
|---|---|---|---|
| New Hampshire | 0.00% | No | Tax Foundation |
| Oregon | 0.00% | No | Tax Foundation |
| Montana | 0.00% | Resort areas only, capped at 3% | Tax Foundation |
| Alaska | 0.00% | Yes, averaging 1.82% combined | Tax Foundation |
| Delaware | 0.00% | No | Tax Foundation |
Does Oregon Have a Use Tax?
Oregon has no general use tax, but it does levy a vehicle use tax. A use tax is a charge on goods bought out of state for use at home, meant to replace uncollected sales tax. Oregon applies this only to vehicles. The vehicle use tax is 0.5% of the retail sales price on new vehicles bought outside Oregon, effective for purchases on or after January 1, 2018, per the Oregon DOR.
The tax is due within 30 days of purchase. You must present a DOR payment certificate before the vehicle can be titled and registered in Oregon. Oregon also charges a matching 0.5% vehicle privilege tax on in-state dealers for new-vehicle sales, also effective January 1, 2018.
Do I Need to Collect Sales Tax in Oregon?
No. No seller collects Oregon sales tax, because none exists. This covers in-state sellers, out-of-state sellers, and marketplace facilitators alike. There is no Oregon sales tax permit, no return, and no exemption paperwork tied to Oregon sales.
Two caveats apply. Out-of-state sellers with large Oregon receipts can still owe the Corporate Activity Tax, covered below. And if you sell from Oregon into other states, those states can require you to collect their tax. See “What If You Sell From Oregon Into Other States?” for the thresholds.
Are There Sales Tax Filing Deadlines or Penalties in Oregon?
No. Because Oregon has no sales tax, there are no sales tax returns, filing deadlines, registration requirements, or penalties, per the Oregon DOR. A business selling only within Oregon has nothing to file and nothing to remit.
The obligations that do carry deadlines and penalties are separate. The Corporate Activity Tax requires registration within 30 days of hitting $750,000 in commercial activity, with a $100-per-month penalty for late registration, per the Oregon DOR. The vehicle use tax must be paid before titling. Both are explained in the next section.
What Taxes Do Oregon Businesses Actually Pay Instead?
No sales tax does not mean no transaction-adjacent taxes. The Corporate Activity Tax (CAT) is the big one, a gross receipts tax on the business rather than the buyer. Portland and Multnomah County then layer several local business and income taxes on top. The table below lists what actually applies.
| Tax | Who pays | Threshold or rate | Source |
|---|---|---|---|
| Corporate Activity Tax (CAT) | Businesses with Oregon commercial activity | $250 plus 0.57% above $1 million; register at $750,000 | Oregon DOR |
| Vehicle use tax | Buyers of out-of-state vehicles | 0.5% of retail price | Oregon DOR |
| Vehicle privilege tax | In-state vehicle dealers | 0.5% of retail price | Oregon DOR |
| Portland Business License Tax | Businesses operating in Portland | 2.6% of net business income, $100 minimum | Portland Revenue Division |
| Multnomah County Business Income Tax | Businesses operating in the county | 2% of net income | Multnomah County |
| Cannabis tax | Cannabis retailers and buyers | 17% state plus up to 3% local | Oregon DOR |
The CAT took effect for tax years beginning on or after January 1, 2020, per the Oregon DOR. It reaches out-of-state sellers with Oregon receipts, so a company that owes nothing in sales tax can still owe CAT.
Does Oregon Have a Sales Tax Exemption Certificate for Businesses?
No. Oregon has no sales tax exemption certificate, because there is no tax to be exempt from. What exists instead is the Oregon Business Registry Resale Certificate. Oregon buyers use it when purchasing goods out of state for resale in Oregon.
You give the resale certificate to the out-of-state seller at the time of purchase, per the Oregon DOR. You never file it with the Oregon DOR. The seller may accept it but is not required to, and some states, such as Washington, require their own form. Oregon law also does not let residents reduce Oregon taxes for sales tax paid in another state. For the mechanics, see Commenda’s Oregon sales tax exemption guide.
What If You Sell From Oregon Into Other States?
Oregon’s no-sales-tax rule stops at the state line. Under South Dakota v. Wayfair, decided June 21, 2018, other states can require Oregon sellers to collect their sales tax once economic nexus thresholds are crossed. This is the single biggest compliance trap for Oregon businesses, which often assume “no sales tax” travels with them.
| State | Economic nexus threshold | Source |
|---|---|---|
| Washington | $100,000 in WA-sourced gross receipts, current or prior year | Washington DOR |
| California | $500,000 in CA sales, current or prior year, since April 1, 2019 | California CDTFA |
| Idaho | $100,000 in Idaho sales | Idaho State Tax Commission |
For state-by-state detail, see Commenda’s guides for Washington, California, and Idaho. Idaho charges a 6% state rate, so crossing that border changes everything for an Oregon seller. The canonical reference for every state’s threshold is Commenda’s US nexus exposure guide.
How Commenda Helps Oregon Businesses With Multi-State Sales Tax
Oregon charges no sales tax, but Oregon sellers shipping into other states face nexus exposure across 40-plus states. That is where the real risk lives, and it is easy to miss when your home state has none.
Commenda’s global indirect tax software tracks your physical and economic nexus across states, then registers, files, and remits on your behalf. Use the US nexus exposure guide to monitor thresholds and the sales tax calculator to look up rates in the states you sell into. The calculator looks up rates only; it does not check nexus.
Book a demo to get a free multi-state nexus exposure assessment for your Oregon business.
